TC6 rear whips around on right turns - fix how?
#1
TC6 rear whips around on right turns - fix how?
My indoor TC6 on carpet... I've changed nothing on my setup & not crashed but now my car when accelerating into/out of RIGHT hand turns spins out like its on ice... the rear whips around uncontrollably. Turning left it holds great. What could be wrong?
I pulled out the loose carpet fibres. Nothing appears broken. To the touch the shocks seem to depress/respring out properly.
Ideas?
I pulled out the loose carpet fibres. Nothing appears broken. To the touch the shocks seem to depress/respring out properly.
Ideas?
#2
Tech Champion
iTrader: (4)
My indoor TC6 on carpet... I've changed nothing on my setup & not crashed but now my car when accelerating into/out of RIGHT hand turns spins out like its on ice... the rear whips around uncontrollably. Turning left it holds great. What could be wrong?
I pulled out the loose carpet fibres. Nothing appears broken. To the touch the shocks seem to depress/respring out properly.
Ideas?
I pulled out the loose carpet fibres. Nothing appears broken. To the touch the shocks seem to depress/respring out properly.
Ideas?
1. Loosen all of your top deck screws.
2. Tighten them.
3. Do the same for the lower chassis.
If your chassis was tweaked this will straighten it out.
Use a ride height gauge to check your ride height on all 4 corners. adjust your shocks to make the height equal.
Pull out your inner hinge pins and see if they are bent.
Make sure you are running ~3 deg of toe in per rear wheel.
#3
Tech Elite
iTrader: (61)
Sounds like your car is tweaked (chassis twisted a little) or has different shock spring preload settings.
1. Loosen all of your top deck screws.
2. Tighten them.
3. Do the same for the lower chassis.
If your chassis was tweaked this will straighten it out.
Use a ride height gauge to check your ride height on all 4 corners. adjust your shocks to make the height equal.
Pull out your inner hinge pins and see if they are bent.
Make sure you are running ~3 deg of toe in per rear wheel.
1. Loosen all of your top deck screws.
2. Tighten them.
3. Do the same for the lower chassis.
If your chassis was tweaked this will straighten it out.
Use a ride height gauge to check your ride height on all 4 corners. adjust your shocks to make the height equal.
Pull out your inner hinge pins and see if they are bent.
Make sure you are running ~3 deg of toe in per rear wheel.
I would pull the springs off the shocks and make sure you have equal rebound as well.
Also, make sure nothing obvious is happening, loose bottom screw or something under the car dragging. Also make sure the wheels spin without hitting a shock mount/ball at full lock, etc.
#4
Tech Master
iTrader: (49)
My indoor TC6 on carpet... I've changed nothing on my setup & not crashed but now my car when accelerating into/out of RIGHT hand turns spins out like its on ice... the rear whips around uncontrollably. Turning left it holds great. What could be wrong?
I pulled out the loose carpet fibres. Nothing appears broken. To the touch the shocks seem to depress/respring out properly.
Ideas?
I pulled out the loose carpet fibres. Nothing appears broken. To the touch the shocks seem to depress/respring out properly.
Ideas?
#6
If my car does that and I'm not able to locate the obvious cause for erratic handling in two or three "pit-stops" after checking all the usual (aforementioned), then I just take the car apart completely and rebuild it very carefully. It might sound like overkill and time consuming but in my modest experience it saves time... it could be a swollen shock o-ring, a slightly bent hinge pin, a dead ball bearing... a hundred things. Doesn't take that long at all. Plus, by going the full rebuild route you gather experience on what can go wrong on your car.
#7
check your tire gluing maybe ? sorry if that's too obvious
#8
If you did not change anything setup wise, then check/reglue all your tires, and check your rear Bearings closely ! Don't mess around with other setup adjustments, specially if the car was fast. I've found that the rear AE Bearings sometimes get pitted, and it can cause some wheel lockup when subject to lateral load in one direction, while being fine in the other direction. Only one bad bearing can cause this, and make you think your diff was bad, or your tweak/shocks also went sour...You'll have to feel each rear bearing for grittiness, and also test the new Bearings that you'll replace them with: better be safe than sorry.....
#9
Do Not Rebuild your whole Car ! At the most, you'll have to upgrade to Acer ceramic Bearings (on all your wheel axles only) the problem does not go away. Also tc6 original Bearings were a real problem back then. Check the TC6 thread, and you'll understand, but I think it was mainly the wheel axle Bearings.....
#10
Rebuild the car, just for peace of mind, it should be done on a regular basis anyway and if it's anything to do with tweak (my diagnosis for your problem) then you'll eliminate that, bearings, or any other problem (checking for straight pins, tyre gluing etc) you'll find any of those problems.
Plus you'll have a nice spotless looking car again for when you run next.
Plus you'll have a nice spotless looking car again for when you run next.
#12
Others have given lots of good ideas. Switching tires left to right is an easy first thing to try. Otherwise you just need to keep looking at everything til you find it. My personal guess is a bent hinge pin.
#13
Check your roll center mounts because they do move and can give u uneven droop
#14
Changing Bearings + reglue tires = 1 hour
Rebuild the car = 10 hours
9 hours of practice = priceless !!!!!
Rebuild the car = 10 hours
9 hours of practice = priceless !!!!!
#15
10 hours... Your not rebuilding a space ship tiger....